Wyartite II R090061
Name: Wyartite II
RRUFF ID: R090061
Ideal Chemistry: CaU5+(U6+O2)2O4(OH)·3H2O
Locality: Shinkolobwe mine, Katanga, Congo
Source: William W. Pinch
Owner: RRUFF
Description: Elongated and striated platy translucent black crystals. This is the material known as the dehydrated phase of wyartite, sometimes known as wyartite II (Hawthorne et al, 2006)
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented Raman on the primary sample
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BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R090061
Wavelength:
Sample Description: Unoriented Raman on the primary sample
Instrument settings: Thermo Almega XR 532nm @ 30% of 150mW
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Raman Data (Processed)
RRUFF File
Raman Data (RAW) View Graph
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POWDER DIFFRACTION 
RRUFF ID: R090061.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 11.236(1)Å    b: 7.136(1)Å    c: 17.063(2)Å
alpha: 90°    beta: 90°    gamma: 90°   Volume: 1368.1(5)Å3    Crystal System: orthorhombic
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Calculated diffraction file.

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Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

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DIF File
X-ray Data (XY - RAW) View Graph
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REFERENCES for Wyartite II

Hawthorne F C, Finch R J, Ewing R C (2006) The crystal structure of dehydrated wyartite, Ca(CO3)[U5+(U6+O2)2O4(OH)](H2O)3, The Canadian Mineralogist, 44, 1379-1385   [view file]